1EN_OM_Receiver BLT373.indd 1
Owner’s manual
Manuel d’installation et ode d’emploi
Installation/Benutzerhandbuch
Manuale di installazione/Dell’utente
Installatie/Gebruikershandleiding
Manual de Instalación/Propietario
Installations-/Ägarmanual
Manual de Instalação/Do Utilizador
BLUETOOTH ® AUDIO/MOBILE-PHONE
TRANSCEIVER FOR AUX INPUT
EMETTEUR-RECEPTEUR AUDIO/TELEPHONE
MOBILE BLUETOOTH ®
POUR ENTREE AUX
BLUETOOTH ® AUDIO/MOBIL-TELEFON
TRANSCEIVER FÜR AUX
RICETRASMITTENTE AUDIO/TELEFONO CELLULARE BLUETOOTH ® PER INGRESSO AUX
BLUETOOTH ® ZENDONTVANGER VOOR AUDIO/MOBIELE TELEFFON VIA AUX-INGANG
TRANSCEPTOR DE TELÉFONO MÓVIL/AUDIO
BLUETOOTH ® PARA ENTRADA AUXILIAR
BLUETOOTH ® SÄNDARMOTTAGARE FÖR
LJUD/MOBILTELEFON VIA AUX-INGÅNG
TRANSRECEPTOR DE ÁUDIO/TELEMÓVEL
BLUETOOTH ® PARA ENTRADA AUX
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Clarion BLT373
This manual is published by Clarion, without any warranty. Improvements any changes
to this manual necessitated by typographical errors, inaccuracies of current information
or improvements to programs and/or equipment, may be made by Clarion at any time
and without notice. Such changes will, however, be incorporated into new editions of
this manual.
iPod is for legal or right holder-authorized copying only. Don’t steal music.
iPod is a trademark of Apple Inc., registered in the U.S. and other countries.
The Bluetooth® word mark and logos are owned by the Bluetooth® SIG, Inc. and any use
of such marks by Clarion is under license. Other trademarks and trade names are those
of their respective owners.
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CONTENTS
1. WHAT IS INCLUDED IN THIS PACKAGE? .......................................... 4
2. PRODUCT FEATURES OVERVIEW ..................................................... 5
Clarion Bluetooth® Audio/Mobile-phone Transceiver (BLT373) ............ 5
3. INSTALLATION ...................................................................................... 7
Installing BLT373 .................................................................................. 7
4. INTRODUCTION TO BLUETOOTH ® “PAIRING” ............................... 10
Pairing Sequence ............................................................................... 11
Automatic Connection ........................................................................ 13
5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILE-PHONE
TRANSCEIVER UNIT ........................................................................ 14
Buttons Terminology ........................................................................... 14
Understanding The Transceiver Unit Indicators ................................. 16
Basic Operations ................................................................................ 17
Music Streaming and Playback Control ............................................. 19
Using Handsfree with Bluetooth® Wireless Technology ..................... 21
6. COMPATIBLE MODELS ...................................................................... 24
7. TROUBLESHOOTING ......................................................................... 25
8. SPECIFICATION .................................................................................. 27
9. ADDITIONAL INFORMATION ............................................................. 28
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1. WHAT IS INCLUDED IN THIS PACKAGE?
A complete BLT373 package consist of the following items:
Velcro hook (x2) with doublesided tape attached
Bluetooth® Audio/Mobile-phone
Transceiver unit with 2.5m cable
and LC box
Velcro loop (x2) with doublesided tape attached
Visor clip
RCA to 3.5mm jack cable (1m)
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2. PRODUCT FEATURES OVERVIEW
Clarion Bluetooth® Audio/Mobile-phone Transceiver (BLT373)
The BLT373 is a handsfree car kit featuring Bluetooth® wireless technology
that allows you to utilize your car’s built-in audio system for wireless music
streaming and wireless mobile phone handsfree communication.
• Auto features:
• Auto-power up when car is started
• Auto-connect with last paired mobile phone, upon power up (Depends
on multiple re-connection mode).
• Auto-switching between music streaming and handsfree mode with
Bluetooth® technology
• Music streaming features:
• High quality wireless digital music streaming (dependent on paired device
capabilities)
• Remote control for remote device (dependent on paired device
capabilities)
• Volume adjustment
• Car kit features:
• Auxiliary output for plugging into car stereo system
• Tel-interrupt pin to switch car stereo to auxiliary-mode for mobile phone
communication
• Built-in microphone, with optional external microphone support.
• Acoustic Echo Cancellation (AEC) and noise suppression
• Left/Right channel switch (to set speaker output channel)
• One-press pick-up/end/reject call and volume controls
• Call transfer
• Volume adjustment
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2. PRODUCT FEATURES OVERVIEW
Telephone interrupt pin
The cable on the Transceiver is equipped with a telephone interrupt pin (TELINT). Such mechanism can be used to notify the car stereo unit to switch
mode when it detects incoming call and transferring call.
• Automatic Bluetooth® profile switch
If the Transceiver is paired to both a Clarion Bluetooth Audio Transmitter
®
and Cradle for iPod ¹ and a mobile phone, when there is an incoming call, a
stereo ringing tone will be heard and any music streaming will be temporarily
muted until call is ended or rejected.
®
• Acoustic Echo Cancellation
Voice signals from the loudspeaker often appear at the microphone, this
causes conversational interference in the form of acoustic echo and howling.
With this advanced DSP-based Acoustic Echo Cancellation (AEC) system
built-in, it is capable of handling full-duplex communication, echo cancellation
and noise suppression on the microphone input to enable smooth handsfree
communication and crystal clear speech.
• Separate volume control
There are two set of volume settings, one for handsfree mode and one
for music mode. This can ensure that the user can set the desired volume
for speech and music separately without having to change the volume when
picking up and ending call between music streaming.
Note:
®
®
¹ Clarion Bluetooth Audio Transmitter and Cradle for iPod (DGL373 and
BC001N/BC002M/BC003V) are Clarion products (sold separately) that
supports music streaming via Bluetooth® wireless technology. Please consult your
local authorized Clarion dealer for more information about the product.
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3. INSTALLATION
Installing BLT373
This Transceiver unit is used to receive audio signals via Bluetooth® wireless
technology from other Bluetooth® device and stream it to the car audio system.
The attached cable has a pair of auxiliary output, a 12V power connector (with
LC box attached) and a TEL-INT (Telephone interrupt) pin.
RCA to 3.5mm
jack cable
Bluetooth® Audio/Mobilephone Transceiver unit
Red jack
White jack
To car stereo AUX-IN
TEL-INT.
(Brown wire)
Gnd (Black wire)
RCA-L
(White
jack)
Acc (Red wire)
Instructions
RCA-R
(Red jack)
Internal
microphone
2.5mm
External
microphone
(Optional)
LC Box (with fuse)
Figure 1: System diagram
1. Connect the 12V (Acc and Gnd) to car supply.
2. Connect the RCA-L and RCA-R to car stereo auxiliary (AUX) input.
Alternately, you can use the RCA to 3.5mm jack cable (included) to connect
to car stereo that supports 3.5mm AUX input.
3. Connect TEL-INT. pin to car stereo telephone mute line (if this feature is
supported).
4. Make sure that the car stereo system’s telephone interrupt is ON.
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3. INSTALLATION
5. Use Velcro with double-sided tape to hold the visor and Transceiver unit if
necessary. (shown in Fig. 2). Detail of using Velcro will be explained as the
followings:
Step 1: Attach the Velcro hook to the visor clip with the double-sided tape
provided.
Step 2: Attach the Velcro loop to the hook.
Step 3: Attach the Transceiver unit to the Velcro loop with the double-sided
tape provided.
6. Secure the Transceiver unit to a location that is easily accessed by the driver
e.g. sun visor (shown in Fig. 3) and dash board (shown in Fig. 4).
7. Set the left/right channel switch according to the position of driver (see
“Switching left or right channel output” on page 23 for details).
8. Once the car is started, the Transceiver is powered on immediately. It cannot
be turned off as long as the ignition key is turned to ON or ACC position.
Notes:
• Check that the location of the Transceiver is adequate to pick-up the car driver
voice.
• Alternately, user can use the external microphone (optional) that plug into the
2.5mm audio jack input for a better voice reception.
Bluetooth® Audio/Mobile-phone
Transceiver unit (step 3)
Velcro loop
(step 2)
Velcro hook
(step 1)
Visor clip
8
Figure 2: Using Velcro with double-sided tape
BLT373
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3. INSTALLATION
Bluetooth® Audio/Mobile-phone Transceiver unit
Figure 3: Fix the BLT373 to the car sun visor
Bluetooth® Audio/Mobile-phone Transceiver unit
Figure 4: Fix the BLT373 to the dashboard
! CAUTION
• Please refer carefully to the system diagram before installing your BLT373.
Incorrect wiring method may cause damage to BLT373, your car audio system
or even your vehicle.
• We strongly recommend that BLT373 is only installed by those fully familiar
with your vehicle’s electrical system, please consult with the supply retailer if
any doubt.
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4. INTRODUCTION TO BLUETOOTH “PAIRING”
®
What is Bluetooth® wireless technology?
Bluetooth® wireless technology is a radio technology that connects devices,
such as mobile phones and headsets, without wires or cords over a short
distance of approximately 10 meters (approx. 33 feet). Get more information
at www.bluetooth.com.
What is Bluetooth® wireless profiles?
Bluetooth® wireless profiles are the different ways that Bluetooth® devices
communicate with other devices. Bluetooth® phones support either the headset
profile (HSP), the hands-free profile (HFP) or both. In order to support a certain
of profiles, a phone manufacturer must implement certain mandatory features
within the phone’s software. The Bluetooth® Audio/Mobile-phone Transceiver
unit supports both HSP and HFP profiles. In addition, it also supports A2DP
and AVRCP in order to allow music streaming and playback control. Please
refer chapter “Music Streaming and Playback Control” on page 19 for more
description on these profiles.
What is pairing?
With a mobile phone featuring Bluetooth® technology, you must “pair” the
Transceiver unit with the phone/Bluetooth® Audio Transmitter before you use
it for the first time.
“Pairing” creates a unique wireless link between the phone/Bluetooth® Audio
Transmitter with Bluetooth® wireless technology and your Bluetooth® Audio/
Mobile-phone Transceiver unit eliminating the need to repeat the pairing
process during future use. Bluetooth® devices will not work if the devices have
not been paired.
What is passkey?
Passkey or PIN is a code that you enter on your mobile phone to pair it with the
Transceiver unit. This makes your phone and the Transceiver unit recognize
each other and automatically work together.
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4. INTRODUCTION TO BLUETOOTH “PAIRING”
®
Pairing Sequence
Note:
• Please refer to Clarion Bluetooth® Audio Transmitter and Cradle for iPod owner’s
manual for the Bluetooth® Audio Transmitter operation below.
Between Bluetooth ® Audio/Mobile-phone Transceiver and
Bluetooth® Audio Transmitter
1. Make sure the Transmitter is connected to an audio source.
2. Make sure the car stereo source mode is switched to ‘AUX’ mode.
3. Set the Transceiver unit in pairing mode. Please refer “Activating Bluetooth®
Transceiver pairing mode” on page 17.
4. Set the Transmitter unit in pairing mode.
5. Music starts automatically upon successful pairing.
Notes:
• You do not have to enter a dedicated pin code for pairing these two devices, as
you do with a mobile phone.
• During pairing mode, the Transceiver unit should show a slower alternate red/blue
LED. Make sure that the Transmitter and Transceiver are not paired to any other
Transceiver or Transmitter respectively.
• Please refer “Understanding The Transceiver Unit Indicators” on page 16 for
further details.
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4. INTRODUCTION TO BLUETOOTH “PAIRING”
®
Between Bluetooth® Audio/Mobile-phone Transceiver and mobile
phone
1. Activate Bluetooth® on your mobile phone. Please check your mobile phone
owner’s manual for further details.
2. Set the Transceiver in pairing mode. Please refer “Activating Bluetooth®
Transceiver pairing mode” on page 17.
3. Search for new Bluetooth® device on the mobile phone. The Transceiver
unit’s name is “CLARION_HSF”.
4. When attempting to connect to the Transceiver unit, the mobile phone will
prompt for a passkey, enter the PIN: “0000”.
5. Incoming call will be automatically diverted to the Transceiver unit upon
successful connection.
Notes:
• Always make sure the Bluetooth® operation mode in the phone is on when using
a Bluetooth® car handsfree.
• During music streaming, pairing with mobile phone at the same time may cause
choppy sound.
! CAUTION
• The Transceiver unit can only pair and connect to ONE mobile phone at a
time.
• In order to pair and connect to another mobile phone, user will have to disconnect
the current mobile phone first. Please refer your mobile phone owner’s manual
for disconnecting device.
• The Transceiver unit can pair with the Transmitter unit and mobile phone at
the same time as long as both device (Transmitter and mobile phone) do not
use the same profiles (A2DP and AVRCP), which are used for music streaming
purposes at the same time.
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4. INTRODUCTION TO BLUETOOTH “PAIRING”
®
Automatic Connection
The Bluetooth® wireless function in your phone has to be turned on to establish
automatic connection.
1. The Transceiver will establish an automatic connection in the following
situations:
• After a previously successful connection, and the Transceiver is switched
on again, it will automatically try to re-connect with the last paired mobile
phone (Depends on multiple re-connection mode). Connection may take
up to a minute depending on the mobile phone.
• Some mobile phones will require user confirmation for Bluetooth®
connection. In such case, user will need to acknowledge the connection
on the mobile phone before the connection is re-established.
2. The Transceiver will not establish an automatic connection or fail to connect
in the following situations:
• If the mobile phone already has connection with other handsfree/
headset
• If the paired mobile phone is powered off and on (depends on mobile
phone)
• If the paired mobile phone is out of range
• If the paired mobile phone is powered on after the Transceiver is turned
on where multiple re-connection mode set to off.
In such cases, the user will need to manually re-connect to the Transceiver
through the mobile phone.
Note:
• If the Transceiver is switched off, some mobile phones may take a long time to
detect the disconnection.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
Buttons Terminology
Please make sure you have read through chapter “Installing BLT373” on
page 7 before proceed to the following operations.
LED
Internal
microphone
[VOL +]
[
]/[
]
[
]/[
]
[VOL -]
[L/R] selector
2.5mm mic input
[RESET]
[ ]/[ ] button
• During incoming call, press the button to pick up call.
• During phone conversation, press the button twice to transfer call.
• During music streaming for iPod, press and hold the button for 1 second to
restart the current track.
• During music streaming, press and hold the button for 1 second (A2DP device)
or 2 seconds (iPod) to move to previous track.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
[ ]/[ ] button
• During incoming call, press the button to reject call.
• During phone conversation, press the button to end call.
• During music streaming for A2DP device or iPod , press and hold the button
for 1 second or longer to move to next track.
[VOL +] button
• Press the button to perform volume up.
• During music streaming, press and hold the button for 1 second or longer
to play/pause the track.
[VOL -] button
• Press the button to perform volume down.
• During music streaming for A2DP device, press and hold the button for 1
second or longer to stop the track.
[RESET] button
• Use the button to reset the unit.
[L/R] selector
• Switch to left or right channel output for phone conversation.
Internal microphone
• Built-in microphone for phone conversation.
2.5mm mic input
• Connect to external microphone
LED
• Indicator that notifies the Transceiver status
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
Understanding The Transceiver Unit Indicators
Event
LEDs
Red
Blue
During power on (may
Blink once
auto connect)
During power on (mobile
Lights up for 2-3 sec
phone pairing info in
memory)
Powered/ready
Blink once every 5 sec
Lights up for 1-2 sec
Call in progress
Blink normally and
lights up once every
5 secs
Blinks rapidly for 1-2
sec
Lights up for 1-2 sec
-
Bluetooth® Pairing mode
Blink alternately every second
Mobile phone connected Blink once every 5 sec Lights up once every 5
(HFP/HSP)
secs
Incoming call
Blink alternately and rapidly
Transmitter connected/ Blink once every 5 secs
Blink rapidly
music streaming
Transmitter and mobile Blink once every 5 secs Blink rapidly and lights
phone connected
up once every 5 secs
Mutliple re-connection
mode is turned ON
Blink once every 5 secs
-
Mutliple re-connection Blinks rapidly for 1-2 sec
mode is turned OFF
-
Notes:
• When both red and blue LEDs are on, LED looks purple.
• Mobile phone with music streaming will be under the same category as “Transmitter
and mobile phone connected”.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
Basic Operations
• Turning on the power
The unit turns on immediately when power is supplied. It can only be turned
off if car engine is off.
• Resetting the Transceiver unit
This function is used to restore to factory default setting and clear all the
pairing information.
1. Press the [RESET] button once to perform reset function.
Notes:
• Transceiver will remain as power on state.
• The previously-connected device(s) may still hold the Transceiver information. Thus
if the device initiate a Bluetooth® connection when the Transceiver is in pairing
mode, the connection may be successful.
• Activating Bluetooth® Transceiver pairing mode
1. Turn on the Transceiver by powering up the car audio system, note that
the Red LED blinks once every 5 seconds to confirm that the power is on.
2. Press and hold the [ ] and [ ] buttons simultaneously for 2 seconds
or longer to activate Bluetooth® pairing mode.
Note:
• If no device is paired to the Transceiver after 3 minutes, pairing mode will be
cancelled.
For more information on Bluetooth® pairing, please see chapter “Pairing
Sequence” on page 11.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
Turning on/off multiple re-connection mode
This function allows user to switch on or off the multiple re-connection mode.
ON: Multiple attempts are made to auto re-connect with the last paired mobile
phone (HSP/HFP) when Transceiver is powered up.
OFF: Only 1 attempt is made to auto re-connect with the last paired mobile
phone (HSP/HFP) when Transceiver is powered up.
1. When the Transceiver is powered on (no device connected), press and hold
the [VOL +] and [VOL -] buttons simultaneously for 2 seconds or longer to
toggle multiple re-connection mode on or off.
2. Auto connection will be observed in the next powered up of the Transceiver
based on the multiple re-connection mode setting.
Notes:
• Factory default setting is ON.
• Please refer to chapter “Understanding the Transceiver Unit Indicators” on
page 16 for more information about the LED status.
• The multiple re-connection attempts will be terminated if the Transmitter (DGL373)
is connected.
• Resetting the Transceiver will not change the multiple re-connection mode to
original setting.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
Music Streaming and Playback Control
Music streaming is a technique for transferring audio data such that it can be
processed as a steady and continuous stream.
Users can stream music from their iPod or other external audio player to their
car stereo and listen to the tracks through the car’s speakers.
WHAT IS A2DP?
A2DP (Advanced Audio Distribution Profile) is a Bluetooth® profile that
allows you to send CD quality stereo music from one device to another without
wires. A2DP is able to provide crystal clear music without the hassle of plugging
cables. Bluetooth® wireless technology with A2DP makes mobile phones, pda’s
and computers capable of streaming music.
WHAT IS AVRCP?
AVRCP (Audio Video Remote Control Profile) is another Bluetooth® profile
that enables music from external audio player to be controlled remotely. AVRCP
allows some basic playback control functions such as start/play/stop/pause,
volume up/down and next/previous track to an external audio player.
! CAUTION
• The Transceiver works as one way communication to the Transmitter. Thus,
please avoid controlling the iPod and Transceiver at the same time as this
might cause some incorrespondence operations between the both devices.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
• Play/Pause a track
Press and hold the [VOL +] button for 1 second or longer to play or pause
the song.
• Stop a track (For A2DP device only)
Press and hold the [VOL -] button for 1 second or longer to stop the song.
Restart a track (For iPod only)
Press and hold the [
] button for 1 second to restart the current song.
• Selecting the next track
Press and hold the [
] button for 1 second or longer to select the next song.
• Selecting the previous track
For A2DP device: Press and hold the [ ] button for 1 second or longer
to select the previous song.
] button for 2 second or longer to
For iPod:
Press and hold the [
select the previous song.
• Adjusting the music streaming volume
You can adjust the speaker volume during music streaming. Please leave
the car audio system volume at the default volume and use the volume
controls on the Transceiver to ensure that the volume do not vary too greatly
when using different mode of the car audio system.
1. Press the [VOL +] button to increase the volume.
2. Press the [VOL -] button to decrease the volume.
Notes:
• There are 19 volume levels with default level setting is 14 upon power up.
• Changing the volume will not affect the internal volume status of the paired
device. It will only affect car speakers’ volume.
• For A2DP devices, after all 19 levels of volume adjustment have been exhausted,
the Transceiver would start reducing/increasing the devices’ volume.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
Using Handsfree with Bluetooth Wireless Technology
®
Note: The Clarion car stereo must activate the telephone interrupt mode to be able
to work with the Transceiver. Please refer the car stereo owner’s manual of each
model for details.
Making a call
• Calling with the phone’s keypad
1. Using the phone keypad, dial the phone number.
2. Press the phone “SEND” key - the phone is now connected to the
Transceiver and your car stereo system will be muted. Talk as normal
to the Transceiver unit, the voice of the person you’re talking to will be
heard through your car speaker.
Incoming call
A ringing tone will be heard. The red and blue LED will alternate blink quickly.
Any music streaming will be temporary muted until a call is ended or rejected.
• Answering a call
Whenever your car stereo is operating, the Transceiver unit is in standby mode
awaiting the next call, when an incoming call arrives, the car stereo is muted
automatically and the ring tone is reproduced through your car’s speaker.
1. Press the [ ] button once to answer the call and speak as normal.
You may also answer the call by using your phone’s answer keypad. In
this case, you can transfer the call to the Transceiver by following the
instruction in the section “Transferring a call” on page 22. However, some
phones will require user to activate transfer call via the phone itself in this
case.
Note:
• The Clarion car stereo must activate the telephone interrupt mode to be able to
work with the Transceiver. Please refer the car stereo owner’s manual of each model
for details. Make sure that your mobile phone has set the Transceiver as the default
headset/handsfree. Please refer your mobile phone owner’s manual for the
relevant setting.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
• To reject a call
User can reject an incoming call with this Transceiver unit.
1. When the car handsfree rings, press the [ ] button once.
Note:
• This is dependent on the type of phone.
• Ending a call
Use either one of the following methods to end a call:
1. To end a call from the Transceiver unit, press the [
2. End a call from the phone’s keypad.
] button once.
Note:
• When making outgoing call from a mobile phone, call cannot be terminated using
the Transceiver unit. It can only be ended when the call is connected (conversation).
Simply use the phone “END” key in order to terminate an outgoing call.
Transferring a call
• To transfer the call to the phone
During a call, press the [ ] button twice.
• To transfer the call to the Transceiver unit
] button twice or use the transfer call function
During a call, press the [
in the phone to transfer call back to car stereo.
Note:
• This function is dependent on the type of phone. Some phones are not
supported.
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5. OPERATIONS FOR BLUETOOTH ® AUDIO/MOBILEPHONE TRANSCEIVER UNIT
Adjusting the telephone interrupt volume
You can adjust the speaker volume in a call via your Transceiver unit.
1. Press the [VOL +] button to increase the volume.
2. Press the [VOL -] button to decrease the volume.
Notes:
• There are 19 volume levels where default level setting is 14 upon power up.
• Use the [VOL +] and [VOL -] controls to adjust the telephone call reception
volume and minimize any echo generated.
• Telephone default volume depends on each car stereo model. Please refer your
car stereo owner’s manual for further details.
Switching left or right channel output
You can switch to left or right channel output for a call.
1. Move the [L/R] selector to the right to enable right channel output.
2. Move the [L/R] selector to the left to enable left channel output.
Notes:
• If your car stereo supports telephone left/right selection, please make sure that
both units (car stereo and Transceiver unit) are set to the same output
channel.
• For left-hand drive car, the audio should preferably come out from the right
speakers and vice-versa.
Connecting an external microphone (optional)
You can connect an external microphone to the Transceiver unit via the 2.5mm
audio jack input for better voice reception. Audio input source will automatically
switch from internal microphone to external microphone. Please consult your
local authorized Clarion dealer for external microphone recommendation.
Note:
• Please use only 2.5mm jack external microphone.
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6. COMPATIBLE MODELS
Supported Clarion car stereo
To enable stereo music streaming, the car stereo must come with AUX
function.
To enable handsfree function, the car stereo must have telephone interrupt
function.
Compatible with Clarion units from 2007 lineup with TEL and AUX function or
consult your nearest Clarion dealer. Please check with your local dealer for
compatibility with other car stereo.
Supported phones with Bluetooth® wireless technology
Make sure your mobile phone supports the following Bluetooth® profile:
- HFP/HSP (handsfree for mobile phone)
Optional profiles for music streaming in mobile phone:
- A2DP (stereo music streaming)
- AVRCP (remote control function)
Please check your phone’s specification for supported profiles.
Supported device with Bluetooth® wireless technology
BLT373 is specially designed and work best with Clarion Bluetooth® Audio
Transmitter (DGL373) and Cradle for iPod (BC001N/BC002M/BC003V). Please
consult your nearest Clarion dealer for the product offer.
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7. TROUBLESHOOTING
Problem
The power of
Transceiver unit does
not turn on
Cause
Fuse is blown.
Transceiver
Incorrect wiring.
Description
Replace with a fuse of
the same amperage
(2A) in the LC box. If
the fuse blows again,
consult your store of
purchase.
Consult your store of
purchase.
The red or purple LED Power-up failure
1. Power off and on the
lights up all the time.
The device may not be
device until the blue
start upon power on.
LED blinks correctly.
2. Press the reset button.
Blue LED lights up all The Transceiver has Power off and on the
the time. Transceiver malfunctioned due to device until the blue LED
is not responding.
some conflicts such as blinks correctly.
multiple pairing at the
same time.
Cannot pair the car The Bluetooth® function The Bluetooth® function
handsfree with the in your phone is off or in your phone must be
phone
car handsfree is off.
set to Automatic or On.
Your phone should be
inside the car during the
pairing procedure. The car
handsfree must be on.
Unable to auto connect Bluetooth® function is is The Bluetooth® function in
with phone upon power disabled in your phone. your phone must be set to
up
Automatic or ON.
1EN_OM_Receiver BLT373.indd 25
Multiple re-connection
mode is off. The auto
connection may not be
successful if there is no
Bluetooth® link detection
for the first and only one
re-connection attempt.
Turn on multiple reconnection mode and
restart the Transceiver.
Manually reconnect via
your phone.
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7. TROUBLESHOOTING
Problem
Transceiver
Cannot connect to the
car handsfree
When Transceiver is
paired with certain
mobile phones (e.g.
Nokia 6233), pressing
the keypad of the
mobile phone causes
the audio streaming
from the Transmitter to
be muted.
Others
No sound contact
between car
handsfree and phone
Telephone call is not
interrupted to car
stereo
26
Cause
Description
The car handsfree may
be connected to another
Bluetooth® device or
your phone may be
connected to another
Bluetooth® device, such
as a headset.
You may have paired
your phone with another
handsfree device.
Disconnect the other
Bluetooth® device.
Some phones can only
be paired with one
handsfree device at a
time. Please check your
phone owner’s manual.
This is a feature of
the mobile phone:
Any audio activities,
including keypad tones,
are transmitted to the
Transceiver unit
Depending on mobile
phone software, turning
off the keypad tones
and alert tones may
resolved this issue.
No pairing between car
handsfree and phone.
The car handsfree and
the phone you are using
with it have to be paired
to recognize each other,
and within range.
Car stereo volume is
too low.
Increase the volume in
the Transceiver unit or
car stereo if necessary.
Telephone interrupt
is off
Set the telephone
interrupt to ON.
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8. SPECIFICATION
Bluetooth® 1.2
A2DP (stereo music streaming)
AVRCP (remote control function, e.g. play/stop,
volume up/down)
HFP/HSP (handsfree for mobile phone)
Wireless range
Class 2: Up to 10m (line of sight)
Sensitivity
- 80dBm
Data rate
Forward: 723kbps Reverse: 57kbps
Antenna
2.45 GHz chip type
Compression/decom- SBC (sub-band coding)
pression algorithm
Bit rate
Variable (<350kbps typical)
Stereo audio
16kHz-48kHz, 16bit (for music)
Mono audio
8kHz,16bit (communication)
iPod support
MMI support for iPod e.g. play/pause, next/previous
track etc
Operating temperature - 20°C ~ 60°C
Storage temperature
- 40°C ~ 85°C
Dimensions
Approx. 44mm (Width) x 63mm (Height) x
11mm (Depth)
Weight
Approx. 160g
Audio bandwidth
30Hz - 20kHz
Signal-to-Noise Ratio ~ 84dB
Mic input
2.2k ohm
Analog output
Line level (1 Vrms)
1 mic with AEC
a) Adaptive acoustic echo cancellation (~ 48dB)
b) Adaptive background noise suppression (~ 12dB)
Voltage source
Max.16VDC
Max current
40 - 50mA
Cable length
2.5m
LC box fuse amperage 2A
Compliance
Profiles
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9. ADDITIONAL INFORMATION
Safe and efficient use
Note:
Read this information before using this product.
Changes or modifications to this product not expressly approved by Clarion
may void the user’s authority to operate the equipment.
Please check for any exceptions, due to national requirements or limitations,
in usage of equipment with Bluetooth® wireless technology before using this
product.
Product care
• Do not expose your product to liquid or moisture or to humidity.
• Do not expose your product to extreme high or low temperatures.
• Do not expose your product to lit candles, cigarettes, or cigars, or to open
flames etc.
• Do not drop, throw or try to bend the product as rough treatment could
damage it.
• Do not use any other accessories than Clarion originals intended for
use with this product. Use of non-original accessories may result in loss of
performance, damage to the product, fire, electric shock or injury. The
warranty does not cover product failures which have been caused by use
of non-original accessories.
• Do not attempt to disassemble your product. The product does not contain
consumer serviceable or replaceable components. Only Clarion service
partners should perform service.
• Do not keep the product in an area prone to dust and dirt. Only use a soft
damp cloth to clean your product.
• If you will not be using the product for a while, store it in a place that is dry,
free from damp, dust and extreme temperatures.
• To reduce risk of electric shock, unplug the unit from any power source
before attempting to clean it.
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9. ADDITIONAL INFORMATION
Installation
Please note that only authorised personnel should install this product. Please
check with your car dealer for recommendations on professional installation
engineers. Check with your car manufacturer’s representative to be sure that
all equipment for this product, including additional accessories, is placed in a
safe location. If your car is equipped with an air bag, check that the handsfree
equipment does not interfere with its function.
This product equipment is made for use in cars with a 12 volt electrical system.
Other supply voltages may cause damage to the equipment.
Radio frequency exposure
This product is a radio transceiver. When in operation, it communicates with
a mobile device featuring Bluetooth® wireless technology by receiving and
transmitting radio frequency (RF) electromagnetic fields (microwaves) in the
frequency range 2400 to 2500 MHz. The output power of the radio transmitter
is low, 0.001 watt.
This product is designed to operate in compliance with the RF exposure
guidelines and limits set by national authorities and international health
agencies when used with any compatible mobile phone with Bluetooth®
wireless technology.
Driving
Check the laws and regulations on the use of mobile phones and handsfree
equipment in the areas where you drive.
Always give full attention to driving and pull off the road and park before making
or answering a call if driving conditions so require.
RF energy may affect some electronic systems in motor vehicles such as
car stereo, safety equipment etc. Check with your vehicle manufacturer’s
representative to be sure that your mobile phone or this Bluetooth® audio/
mobile-phone transceiver will not affect the electronic systems in your
vehicle.
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9. ADDITIONAL INFORMATION
Electronic equipment
Most modern electronic equipment is shielded from RF energy. However,
certain electronic equipment is not, therefore:
Do not use this product near medical equipment without requesting permission.
If you are using any personal medical devices, e.g. a pacemaker or a hearing
aid, please read in your mobile phone’s User’s Guide for further information.
Blasting areas
Turn off all your electronic devices when in a blasting area or in areas posted turn
off two-way radio to avoid interfering with blasting operations. Construction
crews often use remote control RF devices to set off explosives.
Potentially explosive atmospheres
Turn off your electronic device when in any area with a potentially explosive
atmosphere. It is rare, but your electronic device could generate sparks.
Sparks in such areas could cause an explosion or fire resulting in bodily injury
or even death.
Areas with a potentially explosive atmosphere are often, but not always,
clearly marked.
Children
Do not allow children to play this product since it contains small parts that
could become detached and create a choking hazard.
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9. ADDITIONAL INFORMATION
Emergency calls
IMPORTANT!
This product and the electronic device connected to the handsfree operate using
radio signals, cellular, Bluetooth® wireless technology and landline networks
as well as user-programmed functions, which cannot guarantee connection
under all conditions. Therefore you should never rely solely upon any electronic
device for essential communications (e.g. medical emergencies).
Remember, in order to make or receive calls, Bluetooth® Audio/Mobile-phone
Transceiver, Bluetooth® Audio Transmitter and the electronic device connected
to the handsfree must be switched on and in a service area with adequate
cellular signal strength. Emergency calls may not be possible on all cellular
phone networks or when certain network services and/or phone features are
in use. Check with your local service provider.
CAUTION!
If you want to dispose this product, do not mix it with general household
waste. There is a separate collection system for used electronic products
in accordance with legislation that requires proper treatment, recovery
and recycling.
Private households in the 25 member states of the EU, in Switzerland and
Norway may return their used electronic products free of charge to designated
collection facilities or to a retailer (if you purchase a similar new one). For
countries not mentioned above, please contact your local authorities for the
correct method of disposal.By doing so you will ensure that your disposed
product under goes the necessary treatment, recovery and recycling and thus
prevent potential negative effects on the environment and human health.
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